Physical and Chemical Changes

Which of the following tells you that a chemical change may have occurred?

• Change Shape

• Melting

• Vaporizing

• Change in color

What happens in ALL chemical changes?

• Change in state of matter

• A new substance is formed

• Bubbles are produced

• An explosion

Is wood burning a physical or chemical change?

• Physical

• Chemical

Is milk going sour a physical or chemical change?

• Physical

• Chemical

Is Gatorade powder dissolving in water physical or chemical change?

• Physical

• Chemical

Is mold growing on cheese a physical or chemical change?

• Physical

• Chemical

Is making orange juice a physical or chemical change?

• Physical

• Chemical

Is sharpening a pencil a physical or chemical change?

• Physical

• Chemical

Is copper tarnishing a physical or chemical change?

• Physical

• Chemical

Is the formation of the grand canyon a physical or chemical change?

• Physical

• Chemical